Repeater attachment for phonographs.



G. L. MINNS. REPEATER ATTACHMENT FOR PHONOGHAPHS.

APPLICATION HLED AUGJQ. |916.'

Lmfsg," Patented Jan. 30,1917.

' 2 SHEETS-SHEET l.

G. L. IVIINNS.

REPEATER ATTACHMENT FOR PHNOGRAPHS.

APPLICATION FILED AUG. 19 I9I6.

Patented Jan. 30, 1.917.

2 SHEETS-SHEET 2.

fL ,Mn n 5 GERGE L. MNNS. GF CLEVELAND, DHIG.

REPEATER ATTACHMENT FR PHNOGRAPHS.

Application filed August 19, 1916.

Y o all wfzfom if may concern.'

lle it known that l. (licence L. Minne. a citizen of the United States, residing at Cleveland. in the county of Cuyahoga? and State ot ilhio, have invented certain new and use'lul lniproveinents in Repeater ttaclnnents ler lhonographs; and l do herelrv declare the following to be a full, clear7 and exact description of the invention, such as will enable others skilled in the art to which ii appertains to make and use the lsaine.

This invention relates to new and useful iniproven'rcnts in repeater' attachments for phonographs and the principal object of the invention is to provide a device which may he altached to an ordina'r)v phonograph usingy a disk record which is adapted to retnrn the .rcproducer to playing position a'liter the record has been completed.

Another object of the invention resides in the provision ot' a novel means Yfor raising the tone arm to caese the same to move haelt to playing position after the record has been played.

A still further object ot the invention. is to provide a device consisting of a har attached at its outer end to a post and carrying` at its inner end a latch mechanism for engaging a post at the center of the record which is screw threaded so that when said latch is in engagement and the record in motion, the inner end of the har will he raised to lift the tone arm into such position as to cause the stylus to disengage the record and after lifting said tone arin up to or beyond a predetermined point it will be seen that the saine will gravitate back to starting` position and engage another latch mechanism which will allow the ear to descend to original position.

With these and other objects in View the invention consists in the novel combination and arrangement oi parts. which will he fully set forth in the following specification and accompanying drawings, in which Figure l. is a. top plan view of a phono- Igraph showing' this attachment in place thereon. 2 is an enlarged sectional View on line 2- 2 of Fig. l. Fig. 3 is an enlarged longitudinal sectional view 4oi? the. traveler ha r over which the tone arms move. Fig. 4T is a horizontal sectional view on line 4 4 of Fig. 2. lfig. 5 is an enlarged mentary sectional view through the traveler bar illustrating one of the latch mechanisms,

Specification of Letters Patent.

Patented Jan. 3h., i @il 7,

sei-iai No. 115,896.

and Fig. ois an enlarged sectional view on line (-t olf Fig. 2.

Referringr to the drawings the numeral l designatesthe phonographic box of ordi nar)v construction provided with the. usual turn tahle 2 having' the ordinauv central post i which connected to a suitable drivin;y mechanism by nieans ol which the turn table is rotated. threaded sleeve is fitted over the upper end of said post and provided at its base with a flange 7.

Attached to and extending upwardlv troni the .box l adjacent the periphery ol the turn table 2 is z post (l provided with an internally screw threaded bore T into which a screw 8 is threaded. This screw 8 is surrounded by a compression coil spring 9 and the head l0 oft' said screw seated on the upper side ol" the traveler bar which will be inore lnllv hereinafter described.

The traveler har above referred to is designaterl b v-the nuineral ll and is pio vided at one end with an opening' li) through which `the screw tl extends and this bar supported on the upper end ot the spring 9 as clearhv shown in Figs. 2 and G. 'lhis traveler har ll comprises a tubular bod)Y .2S vlornied intermediate its ends with a depression il which is arranged so that when said bar is in place the depression will come. in direct alineinent with the outer groove .of the playing' surface of the record. i F rined within the bod)Y lil near the end opposite that which is connected to the screw S is an inwardl)y extending: annular flange l5 toriningI a central guide opening lll through which the toothedlatch member to he more Fully hereinafter descrihed is passable. l `ornie `l rentrall;v oi the upper side of the depression .ll isan oiwningr 1i' through which the stein oi" the latch button is slidable. i suitable slot 1S is 'formed near the inner end of 'the body l and this slot is to accommodate the box n'ieinher lor holding the toothed bolt away lroni engagement with the sleeve Ll.

The toothed holt above referred to con sists of a stern i9 provided at its outer end with a head 20 which is provided on its outer face with a pluralit)r of transverselyY extendingn ribs or teeth for cooperation with the threads et the sleeve Ll. 'lhe stein l is slidahle through the opening' 1G and a spring" 2l. hears against the annular rih l5 and the head 20 outwardly. The .inner end of the stein E9 to normally urge the bolt engagement with the .lug 22. It will thus be that in use the seen that when the device is in the position shown in Fig. 3 the head 20 will be held outx of engagement with vthe threaded sleeve. It will also be seen that the lever 24 is curved upwardly to form a seat in which the tone arm when at its innermost limit of travel engages.

Connected to theinner end of the bolt 19 :s a rod 26 which extends through the tubular body 13 and has pivotally connected to its inner end the arm 27 of a bell crank designated generally by the numeral 28 which is pivoted as shown at 29 within the depressed portion 14 of the bar 13 and the forwardly extending arm 30 of said bell crank is provided with a slot 3l for the reception of the pivot pin 32 by means of which the lower end of the stem of the button designated by the numeral 33 is pivoted to the bell crank. The upper end of the stem of the button is provided with a head 34 which is curved to form a seat in which the tone arm rests when at starting position. It will thus be seen that when the tone arm is set at starting position the same will operate to move the bell crank into such a position as to withdraw the bolt out of engagement with the sleeve 4.

It will be apparent from the foregoing tonc arm rests when in starting position directly over the latch button 34 and as the record rotates, the tone arm travels inwardly toward the center of the record and toward the latch 24. After the record has been played vitxwill be seen that the tone arm will have been carriedv into engagement with the latch 24 and thus operating the same to release the bolt 19 and allow the heads 20 to engage the threaded sleeve 4 which due tothe continuous rota- Uopies o! this patent may be obtained for ve cents each, by addressing the tion of the turn table and (ns1: /wni carry the end of .the arm 1l upwardly until it reaches such position that the tone arm vill by gravity travel to its original p'osition and .drop into the depression formed in the arm may be repeated until stopped by the user. I

While in the foregoing there has been shown and described the preferred embodiment of this invention7 it is to be understood that such changes may be made in the combination and arrangement of parts as will fall within the spirit and scope of the invention as claimed.

What is claimed is The combination with a phonograph inoluding a turn table7 a central post in the turn table, a `tone arm, a record on the turn table and a sound box on the tone arm, of a horizontally disposed traveler bar positioned beneath the tone being provided with external screw threads, means adjustably supporting the outer end of the traveler bar and a toothed bolt at the inner end of the traveler bar for engagement with the sleeve so that when the sleeve rotates and the bolt is in contact therewith the traveler bar will be raised, a spring for raising said bolt into engagement with the sleeve, a latch for holding said bolt out ofv engagement with the sleeve, said latchv beingfmounted at the inner end of the traveler Commissioner of Patents,

Washington, D. C.

arm, a sleeve fitted4 yover the central post of the turn table and 

